How to get traefik to redirect to specific non-docker port from inside docker

Question

First of all I'm sorry if I'm not using the right terms to ask this question, but I'm not up to the terminology in place.

I have traefik running in a docker container and serving some services with the PathPrefix option, for instance, www.myserver.com/wordpress redirects to a docker container running wordpress.

But how do I get it to redirect to outside a docker container? Specifically, how do I get www.myserver.com to redirect to port 8080 in my machine to serve a service I have running there in the host OS (not in a docker container)?

This is my traefik.toml:

logLevel = "DEBUG"
defaultEntryPoints = ["http", "https"]

[entryPoints]
    [entryPoints.http]
        address = ":80"
        compress = false
        [entryPoints.http.redirect]
            entryPoint = "https"
    [entryPoints.https]
        address = ":443"
        [entryPoints.https.tls]

[acme]
email = "mymail@mail.com"
storage = "acme.json"
entryPoint = "https"
onHostRule = true
#onDemand = true
[[acme.domains]]
    main = "www.myserver.com"

[web]
address = ":8888"

[docker]
endpoint = "unix:///var/run/docker.sock"
domain = "www.myserver.com"
watch = true
exposedbydefault = false

And my docker-compose.yml for the traefik container:

version: "2"

services:
  traefik:
    image: traefik
    network_mode: "host"
    ports:
      - "80:80"
      - "443:443"
      - "8888:8888"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - ${SERVER_DIR}/AppData/traefik:/etc/traefik/
      - ${PWD}/acme.json:/acme.json
      - ${PWD}/traefik.toml:/etc/traefik/traefik.toml
      - ${PWD}/servers.toml:/etc/traefik/servers.toml
    restart: never

Answer 1

I've fiddled around and found the answer.

In traefik.toml add:

################################################################
# File configuration backend
################################################################
# Enable file configuration backend
# Optional
[file]
        filename = "servers.toml"

# Enable watch file changes
        watch = true

In docker-compose.yml change the volumes: to:

volumes:
  - /var/run/docker.sock:/var/run/docker.sock
  - ${SERVER_DIR}/AppData/traefik:/etc/traefik/
  - ${PWD}/acme.json:/acme.json
  - ${PWD}/traefik.toml:/etc/traefik/traefik.toml
  - ${PWD}/servers.toml:/servers.toml

Add file servers.toml:

loglevel = "ERROR"

[backends]
[backends.nasweb]
        [backends.nasweb.servers.nasweb]
            url = "http://192.168.1.11:8080"

[frontends]
        [frontends.domain]
                backend = "nasweb"
        [frontends.domain.routes.domain]
                rule = "Host:www.myserver.com"